4 Written questions
3 Multiple choice questions
- The term "monophyletic" refers to a taxon that includes an ancestral species and all of its descendants.
- 4.5 billion years ago ... 3.9 billion years ago
- the homolog has evolved more slowly in mice.
3 True/False questions
Which of these are homologous structures?
There are no homologous plant structures.
Ivy leaf and pine needle
Plant root and plant leaf → Ivy leaf and pine needle
Why do some scientists believe that RNA, rather than DNA, was the first genetic material?
All the proto-cells on early Earth contained RNA.
RNA has both information storage and catalytic properties.
RNA could have evolved into DNA.
RNA can replicate more accurately than DNA.
RNA contains uracil in place of thymine → the homolog has evolved more slowly in mice.
If you were using cladistics to build a phylogenetic tree of cats, which of the following would be the best outgroup?
tiger → the homolog has evolved more slowly in mice.